ETA1093

 

 

1MHz, Forced-PWM, High Output current Synchronous Step-Up Converter

 

FEATURES

ETA1093 is an ETA Solutions’ high efficiency, high frequency

synchronous Step-Up converter, capable of delivering output

current up to 3A at a 5V output from a 3.6V input. With a low

Rdson Power MOS and a built-in synchronous rectifier, its

efficiency can be as high as 93% at a 5V/2.1A load. This greatly

minimizes power dissipation and reduces heat on the IC,

making it ideal for applications that require small board space

and have stringent temperature constraints, such as power

banks and mobile devices. ETA1093 also incorporates ETA

overload and short-circuit conditions. All of these features are

integrated in a tiny QFN3x3-16 package. With 1MHz switching

frequency, small external input and output capacitors and

inductor can be used.

ETA1093 employs a FORCED-PWM control scheme, therefore,

the switching frequency is fixed at any load. It makes ETA1093

perfect for systems that sensitive to low frequency noise, like

audio system and communication system.

Up to 97% Energy Converting Efficiency

Up to 3A output current at 5V output, 3.6V input

Externally adjustable output voltage

True Shut off during shutdown and output short-

circuit protection

Thermal Shutdown

Forced PWM at light load

QFN3x3-16

 

APPLICATIONS

Power Bank

Mobile 3G/4G Mi-Fi

Mobile Bluetooth music player and speaker

 

ORDERING INFORMATION

PART

PACKAGE PIN

TOP MARK

ETA1093Q3Q

QFN3x3-16

ETA1093

YWW2L

  

TYPICAL APPLICATION

 

 

Typical Application Circuit 

ETA1093

7

8

12

11

13

15

14

5

6

SW

SW

SW

SW

VIN

EN

UVLO

SJ

GA

2.2uH

VIN

10uF

PGND

1, Enable

0, Disable

1, 3.1V on

0, 1.8V on

1, Freq. Jitter

0, No Freq. Jitter

3

10

OUT

OUT

4

17

GP

GP

22uFx2

PGND

VOUT

R1

R2

2

ISET

Riset

1

D

to USB's D+/D-

for application of

USB power port